pro.dbro.bart.RequestTask.java Source code

Introduction

Here is the source code for pro.dbro.bart.RequestTask.java

Source

/*
 *  Copyright (C) 2012  David Brodsky
 *   This file is part of Open BART.
 *
 *  Open BART is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  Open BART is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Open BART.  If not, see <http://www.gnu.org/licenses/>.
*/

package pro.dbro.bart;

import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;

import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import android.app.Activity;
import android.content.Intent;
import android.os.AsyncTask;
import android.support.v4.content.LocalBroadcastManager;
import android.util.Log;

public class RequestTask extends AsyncTask<String, String, String> {
    //allow data passing to calling activity
    String request;
    boolean updateUI;

    RequestTask(String request, boolean updateUI) {
        super();
        this.request = request;
        this.updateUI = updateUI;
    }

    @Override
    protected String doInBackground(String... uri) {
        if (BART.USE_LOCAL_RESPONSES) {
            Log.d("RequestTask", "Using local responses");
            try {
                String filename = null;
                if (request.compareTo("etd") == 0)
                    filename = "problem_etd.aspx.xml";
                else
                    filename = "problem_sched.aspx.xml";

                BufferedReader r = new BufferedReader(
                        new InputStreamReader((TheActivity.c.getAssets().open(filename))));
                StringBuilder total = new StringBuilder();
                String line;
                while ((line = r.readLine()) != null) {
                    total.append(line);
                }
                return total.toString();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        HttpClient httpclient = new DefaultHttpClient();
        HttpResponse response;
        String responseString = null;
        try {
            String url = uri[0];
            response = httpclient.execute(new HttpGet(uri[0]));
            StatusLine statusLine = response.getStatusLine();
            if (statusLine.getStatusCode() == HttpStatus.SC_OK) {
                ByteArrayOutputStream out = new ByteArrayOutputStream();
                response.getEntity().writeTo(out);
                out.close();
                responseString = out.toString();
            } else {
                //Closes the connection.
                response.getEntity().getContent().close();
                throw new IOException(statusLine.getReasonPhrase());
            }
        } catch (ClientProtocolException e) {
            //TODO Handle problems..
            return "error";
        } catch (IOException e) {
            Log.v("RequestTask", e.toString());
            return "error";
            //TODO Handle problems..
        }
        return responseString;
    }

    @Override
    protected void onPostExecute(String result) {
        sendMessage(result);
        super.onPostExecute(result);
    }

    private void sendMessage(String result) { // 0 = service stopped , 1 = service started, 2 = refresh view with call to bartApiRequest(), 3 = 
        int status = 3; // hardcode status for calling TheActivity.parseBart
        //Log.d("BART_Response", result);
        Intent intent = new Intent("service_status_change");
        // You can also include some extra data.
        intent.putExtra("status", status);
        intent.putExtra("result", result);
        intent.putExtra("request", request);
        intent.putExtra("updateUI", updateUI);
        LocalBroadcastManager.getInstance(TheActivity.c).sendBroadcast(intent);
    }
}